<molecular biology> A nonreceptor tyrosine kinase, related to src. ... (18 Nov 1997) ... 
Haematopoietic cell kinase. A protein tyrosine kinase of the src family found in lymphoid and myeloid cells and is bound to B-cell receptors in unstimulated B cells. Deletion of hck and src or hck and fgr leads to severe developmental anomalies and impaired immunity in mice.